Pith Number

pith:UTOQTLWH

pith:2019:UTOQTLWH2652E2TSR4BZGIZBHR

not attested not anchored not stored refs pending

MATCHA: Speeding Up Decentralized SGD via Matching Decomposition Sampling

Anit Kumar Sahu, Gauri Joshi, Jianyu Wang, Soummya Kar, Zhouyi Yang

arxiv:1905.09435 v3 · 2019-05-23 · cs.LG · cs.SY · eess.SY · math.OC · stat.ML

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UTOQTLWH2652E2TSR4BZGIZBHR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-06-04T20:14:32.492519Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4dd09aec7d7bba26a728f039323213c73c943595ea17627b06678dd34392bb1

Aliases

arxiv: 1905.09435 · arxiv_version: 1905.09435v3 · doi: 10.48550/arxiv.1905.09435 · pith_short_12: UTOQTLWH2652 · pith_short_16: UTOQTLWH2652E2TS · pith_short_8: UTOQTLWH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/UTOQTLWH2652E2TSR4BZGIZBHR \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: a4dd09aec7d7bba26a728f039323213c73c943595ea17627b06678dd34392bb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca7b3e5a1fa5fb11b67e5cb287d54fc1d4526d0c6a0aa28824699cd16d5f50c5",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-05-23T02:13:14Z",
    "title_canon_sha256": "f17fa98a5079d998079f56536df16898ad02e527c45f17a066312b1f21d309f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.09435",
    "kind": "arxiv",
    "version": 3
  }
}